SCA3100-D04

SCA3100-D04 Data Sheet SCA3100-D04 3-AXIS HIGH PERFORMANCE ACCELEROMETER WITH DIGITAL SPI INTERFACE Features Applications 3.3V supply voltage SCA3100-D04 is targeted to applications with high 2 g measurement range stability requirements. Typical applications include 3-axis measurement XYZ directions Hill Start Aid (HSA) 30mg offset stability over temp range Electronic Parking Brake (EPB) SPI digital interface Roll Over detection Extensive self diagnostics features Suspension control Size 7.6 x 3.3 x 8.6 mm (w x h x l) Inclinometers Qualified according to AEC-Q100 standard Motion and position measurements Package, pin-out and SPI protocol compatible with VTI digital accelerometer product family RoHS compliant Dual Flat Lead (DFL) plastic package suitable for lead free soldering process and SMD mounting Proven capacitive 3D-MEMS technology General Description SCA3100-D04 is a high performance three axis accelerometer component based on VTI capacitive 3D-MEMS technology. The component integrates high accuracy micromechanical acceleration sensing together with a flexible SPI digital interface. Dual Flat Lead (DFL) housing guarantees reliable operation over product lifetime. SCA3100-D04 is designed, manufactured and tested for high stability, reliability and quality requirements of automotive applications. The accelerometer has extremely stable output over wide range of temperature, humidity and vibration. The component is qualified against AEC-Q100 standard and has several advanced self diagnostics features. The DFL housing is suitable for SMD mounting and the component is compatible with RoHS and ELV directives. SCA3100-D04 is a part of VTI digital accelerometer family and fully compatible with single axis accelerometers (SCA800 series) and other multi axis accelerometers (SCA2100 series and SCA3100 series). VTI Technologies Oy 1/5 www.vti.fi Doc. Nr. 82 688 00 E SCA3100-D04 Performance Characteristics Vdd=3.3 V and ambient temperature unless otherwise specified. Parameter Condition A) Min Typ Max Units Analog and digital Vdd 3.0 3.6 V Current consumption Active mode 3 5 mA Power down mode 0.12 mA Measurement range Measurement axes (XYZ) -2 2 g Operating temperature -40 125 C B) Offset total error Temperature range -40 ... +125 C -70 70 mg C) Offset calibration error 25 C 5C -40 16 40 mg D) E) D) Offset temperature drift Temperature range -40 ... +125 C -30 18 30 mg Sensitivity 12 bit output 900 Count/g Between 3 0.0637 /Count Total sensitivity error Temperature range -40 ... +125 C -4 4 % FS Sensitivity calibration error 25 C 5C 0.5 % FS Sensitivity temperature drift Temperature range -40 ... +125 C 0.8 % FS Linearity error +1g ... -1g range -20 20 mg Cross-Axis sensitivity -3.5 2.5 +3.5 % Zero acceleration output 2-complement 0 Counts F) Amplitude response -3dB frequency 30 55 Hz Noise 5 mg RMS Power on setup time 0.1 s Output data rate 2000 Hz Output load 50 pF SPI clock rate 8 MHz ESD protection Human Body Model 2 kV Charge Device Model 1 kV Moisture sensitivity level IPC/JEDEC J-STD-020C, Level 3 Mechanical shock 20 000 g ID register value Customer readable ID register (27hex) C1 A) Typical values are 3 sigma variation limits from validation test population. B) Includes offset deviation from 0g value including calibration error and drift over lifetime, temperature and supply voltage. C) Includes offset deviation from 0g value including calibration error and drift over lifetime. D) Offset drift due to temperature. Value is a relative value and has been centered to zero. Error defined as maximum change of offset in temperature range. Offset (max)-Offset Min). 100% tested in production. E) Biggest change of output from RT value due temperature. F) See figure 4. SCK Lowpas s Decimation Coordinate Analog Filter Mapping calibration MISO C/V DE - SPI and & ADC MUX i/f Decimation Lowpas s Calibration 1:4 MOSI Filter CSB Lowpas s Decimation Filter Lowpass Decimation Filter Oscillator Non- Reference Temperature Continuous Start-up & Volatile self test sensor self test clock Memory Figure 1. SCA3100-D04 Block diagram VTI Technologies Oy 2/5 www.vti.fi Doc. Nr. 82 688 00 E